Govt flags Abhayrab rabies vaccine batch as substandard, probes if spurious, document shows

India's drug regulator has flagged a batch of Abhayrab rabies vaccine as substandard. This finding marks the second time concerns have been raised about counterfeit Abhayrab doses. The government's Central Drugs Laboratory found the vaccine did not meet potency requirements. Significant differences were noted between the sampled product and a reference sample. The regulator is investigating whether the vaccine is spurious under Indian law.